What specific installation media or DVD is needed to reinstall Windows 7?
For example:
I have the Windows 7 product key on this <span class="qlink_container"><a href="/Lenovo">Lenovo</a></span> laptop.
Do I need the Lenovo OEM DVD?
Or can I use the downloadable ISO file, then burn to a DVD, or preferably copy to a <span class="qlink_container"><a href="/Flash-Drive">Flash Drive</a></span>?